Home / 818,903.80-1,229,667.90-619,449.40

Finding the Fourth Proportional to 818,903.80, 1,229,667.90 and 619,449.40

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Solution

The fourth proportional to 818,903.80, 1,229,667.90 and 619,449.40 is: 930,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,903.80 : 1,229,667.90 = 619,449.40 : x
  2. Step 2: Convert to fraction form
    818,903.80/1,229,667.90 = 619,449.40/x
  3. Step 3: Cross multiply
    818,903.80x = 1,229,667.90 × 619,449.40
  4. Step 4: Simplify right side
    818,903.80x = 761,717,042,854.26
  5. Step 5: Solve for x
    x = 761,717,042,854.26/818,903.80
  6. Step 6: Final answer
    x = 930,166.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.